Gave it a whirl, There are some nice features - quick startup, apps, customisable.
However, it has significant problems:
Most importantly, the firmware seems to have forgotten what the device is actually intended for - an eBook reader. As far as I can see, the only way to get to your books is to navigate to them through the file manager. No nice lists, cover displays, sorting into series and so on. I probably spent the first 5 minutes after installation wondering how I read a book.
The second major issue (a deal-breaker for me), is how sluggish the firmware is. The device may start up quickly, but that's where the speed ends. Most importantly, there is a significant pause when turning pages - I have to hit the turn button about half way down the page if I don't want to be sitting drumming my fingers. This, along with the poor library management make the firmware pointless for me - I'd like to have the extra features, but I really want to read my books!
Menus are intermittently sluggish too - there are times where I'm left wondering if the device has registered my input or not...
So, bit more work needed
